八年级英语下册 unit 7 international charities period 3导学案(新版)牛津版

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1、Unit7InternationalcharitiesPeriodFourGrammar【课前预习】Thepassivevoice被动语态英语动词又主动语态和被动语态之分，以表示主语和谓语之间的不同关系。主动与态通常表示主语是行为的发出者，被动语态通常表示主语是行为的对象。ActivevoiceSVO1)ElectricitylightsThestreetsPassivevoice2)ThestreetsarelitbyelectricitySVby+v-ed主动语态变被动语态，谓语动词Vbe+V-ed1.be是助动词，无词义，帮助构成被动语态。2.be根据人称、数和时态变化。如：一般现在

2、时用amisare。一般过去时用waswere3.规则东词的过去分词和过去式同形。不规则动词见书中附录。当着重指出行为的对象，或不必说明谁是行为的发出者时，用被动语态。Televisionisnowwidelyusedinindustry.电视目前广泛用于工业。Thisknifeismadeofmetal.这个刀是铁制的。Electricitykeepsthebuildingswarm.=Thebuildingsarekeptwarmsbyelectricity.MrGreengavehimapen=HewasgivenapenbyMrGreen.=Apenwasgiven(to)himb

3、yMrGreen.知识链接：★一般现在时被动语态结构式：a.肯定句：主语+am/is/are+动词的过去分词+(by+人代宾格)+其他eg.Englishisstudied(byus)everyday.b.否定句：：主语+am/is/are+not+动词的过去分词+(by+人代宾格)+其他eg.Englishisnotstudied(byus)everyday.c.疑问句：IsEnglishnotstudied(byus)everyday.?d.特殊疑问句：What/Where/When+am/is/are+主语+动词的过去分词+其他?【边学边练】Nowplastics(widelyuse

4、)tomakemachinesparts.Thisknifemetal.这个刀是铁制的。★一般过去时被动语态结构式：a.肯定句：主语+was/were+动词的过去分词+(by+人代宾格)+其他eg.Englishwasstudied(byus)everyday.b.否定句：主语+was/were+not+动词的过去分词+(by+人代宾格)+其他eg.Englishwasnotstudied(byus)everyday.c.疑问句：WasEnglishnotstudied(byus)everyday.?d.特殊疑问句：What/Where/When+was/were+主语+动词的过去分词+其

5、他?【边学边练】请选出能填入空白处的最佳选项。1.Manytreesandflowers___________inourschoollastyear.A.plantB.plantedC.haveplantedD.wereplanted2.It’ssaidthat215morenewschools___________inthiscityby2020.A.arebuildingB.werebuiltC.havebuiltD.willbebuilt窗玻璃不是他打碎的。Thewindow.【巩固训练】一、单项选择()1．—Susan,whyareyoustillhere?Theyareallre

6、adytostart.   –I’msorry,butI_____whentomeet.A.don’ttell       B.didn’ttell     C.haven’ttold    D.wasn’ttold()2．---Mywatch______.---Don’tworry.Let’sgototheLost&Found.A.islostB.isbrokenC.hasfoundD.hasstopped()3．---DidyougotoSam’sweekendparty?---No,I___________.A.amnotinvitedB.wasn’tinvitedC.haven’t

7、invitedD.didn’tinvite()4．--Howoften______yourschoolsportsmeeting______?--Onceayear.A.does;holdB.was;holdC.is;heldD.did;hold()5.Twelve-year-oldsshouldnottodriveinChina.A.allowB.beallowC.allowedD.beallowed()6. —Doy